<!DOCTYPE html>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style>

body { width: 500px }

#child { width: 20px }

</style>

<div id='container'>
  <div id='element'>
    <div id='child'>
    </div>
  </div>
</div>

<script>
var element = document.getElementById('element');
var container = document.getElementById('container');

test(function() {
    element.style.fontSize = '10px';
    var player = element.animate([{width: '3em'}, {width: '5em'}], 10);
    player.pause();
    player.currentTime = 5;
    element.style.fontSize = '20px';
    assert_equals(getComputedStyle(element).width, '80px');
}, 'width responsive to style changes');

test(function() {
    element.style.fontSize = '10px';
    var player = element.animate([{width: '40px'}, {width: 'calc(40px - 2em)'}], 10);
    player.pause();

    player.currentTime = 5;
    element.style.fontSize = '40px';
    assert_equals(getComputedStyle(element).width, '20px');

    player.currentTime = 7.5;
    assert_equals(getComputedStyle(element).width, '10px');
}, 'width clamped to 0px on keyframes');

test(function() {
    container.style.width = 'auto';
    var player = element.animate([{width: 'inherit'}, {width: '20px'}], 4000);
    player.pause();

    player.currentTime = 1000;
    assert_equals(getComputedStyle(element).width, '500px');

    container.style.width = '100px';
    assert_equals(getComputedStyle(element).width, '80px');

    container.style.width = 'min-content';
    assert_equals(getComputedStyle(element).width, '20px');

    container.style.width = '100px';
    assert_equals(getComputedStyle(element).width, '80px');

    container.style.width = 'max-content';
    assert_equals(getComputedStyle(element).width, '20px');

    container.style.width = '100px';
    assert_equals(getComputedStyle(element).width, '80px');

    container.style.width = 'fit-content';
    assert_equals(getComputedStyle(element).width, '20px');
}, 'width responsive to inherited changes from keyword');

test(function() {
    container.style.fontSize = '10px';
    container.style.width = '100px';
    var player = element.animate([{width: 'inherit'}, {width: '200px'}], 4000);
    player.pause();

    player.currentTime = 1000;
    assert_equals(getComputedStyle(element).width, '125px');

    container.style.width = '120px';
    assert_equals(getComputedStyle(element).width, '140px');

    container.style.width = '100px';
    assert_equals(getComputedStyle(element).width, '125px');
}, 'width responsive to inherited changes from length');

</script>
